43671349 has 4 divisors (see below), whose sum is σ = 43711564. Its totient is φ = 43631136.

The previous prime is 43671307. The next prime is 43671371. The reversal of 43671349 is 94317634.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8352100 + 35319249 = 2890^2 + 5943^2 .

It is a cyclic number.

It is not a de Polignac number, because 43671349 - 2¹⁹ = 43147061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43674349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18432 + ... + 20665.

It is an arithmetic number, because the mean of its divisors is an integer number (10927891).

Almost surely, 2^43671349 is an apocalyptic number.

It is an amenable number.

43671349 is a deficient number, since it is larger than the sum of its proper divisors (40215).

43671349 is a wasteful number, since it uses less digits than its factorization.

43671349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214.

The product of its digits is 54432, while the sum is 37.

The square root of 43671349 is about 6608.4301464115. The cubic root of 43671349 is about 352.1536567660.

The spelling of 43671349 in words is "forty-three million, six hundred seventy-one thousand, three hundred forty-nine".